Excessive hair loss, slowed hair growth or premature greying can have various causes, with diet playing a key role. Para-aminobenzoic acid (PABA), also known as vitamin B10 (although it is not officially a vitamin), is one of the key nutrients that support the health of the hair, skin and the body’s overall vitality. Furthermore, it may also influence the ageing process. Despite its beneficial effects, it is less well known today, although in the past it was regarded as almost a miracle cure for maintaining youthfulness. In the 1950s, scientists investigated PABA for its potential in combating degenerative diseases and recorded cases where it had slowed down the greying of hair. PABA is one of the compounds that influence the formation of folic acid (vitamin B9), which is essential for DNA synthesis and the production of blood cells, and is important for the growth of beneficial bacteria in the gut. It plays a role in protein metabolism, thereby supporting the health of hair, skin and nails, and acts as a protective antioxidant against the harmful effects of free radicals. PABA